From patchwork Wed Aug 14 10:20:05 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Satya Priya Kakitapalli X-Patchwork-Id: 13763242 Received: from mx0b-0031df01.pphosted.com (mx0b-0031df01.pphosted.com [205.220.180.131]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id ED0A51AD9FB; Wed, 14 Aug 2024 10:20:45 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=205.220.180.131 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1723630847; cv=none; b=tXmY5M6INTL3VFnFWgkiFzFL/IOvW7pf0Iac8cE8Ft7qQ7RTHHSUNzKboxhJX4l2xUN5zre0YfbWuqdy6un4psU0E14oVJmCI1Efy/0yUnjdKFo9IZn3GVItOcCwJSIpJtCix8SZaFdMLVfukU4e+mTavS0Z7+8vvJTvihGjDTg= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1723630847; c=relaxed/simple; bh=PCipO6aO89n17fEmsijtEDXMLHYcvzFyvE8dyg23yXA=; h=From:To:CC:Subject:Date:Message-ID:MIME-Version:Content-Type; b=F5A0EdPdmqPwTbFASn2E/eSfhdmMBG5NQu7D7CMbE+44lfXBW1W/OabqHwtd5UsK4lhuXH1tlL/pRww/T0O9R/Ah5fG9ElmMEUNuNWSMRLhDeLzNl3xZex2skg5emAj4Dcfvl9s+CSIQ+74To5t5ryv6EJJ5nbX2d6gVQt9fsLY= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=quicinc.com; spf=pass smtp.mailfrom=quicinc.com; dkim=pass (2048-bit key) header.d=quicinc.com header.i=@quicinc.com header.b=SYAxHTLF; arc=none smtp.client-ip=205.220.180.131 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=quicinc.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=quicinc.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=quicinc.com header.i=@quicinc.com header.b="SYAxHTLF" Received: from pps.filterd (m0279870.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 47DNFjNR027666; Wed, 14 Aug 2024 10:20:39 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; h= cc:content-transfer-encoding:content-type:date:from:message-id :mime-version:subject:to; s=qcppdkim1; bh=eKK5V0RLxyU0dvvI/xvmLQ qda/gVganrDWsGYytc0CI=; b=SYAxHTLFzYFcc4Qxk6yxAREDts6opRAqrxKx+l xSKTZkbnwi0DNcpnv7VHXbvL9VAcMCb/b7Bc5NwDu8dSWMue4LADjIc10cWWYbx7 3apVcnn2GcvM2y1xynwGtjJIZDHc89XJpu4TbxMQYQFrkxWefRJDYrD/zBeyg5DA a4hdXogw+E0IKa6b0fUtkhZ0OYXi4fvGPLud9soif1VdaHU9et5y1WoK1J9ByzC+ Fk4SxdCe9Y4+Ck8B7wlFIHjwQeNwtkWJ6bvPHjuLh4JsQQmZuY+9k7FshxWDCubz 9fsb9oub/MaL/iFI6T4D9faw0Amp88W/WCz4F3lcXL3C6yDQ== Received: from nalasppmta05.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 40x3etaq9k-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 14 Aug 2024 10:20:39 +0000 (GMT) Received: from nalasex01c.na.qualcomm.com (nalasex01c.na.qualcomm.com [10.47.97.35]) by NALASPPMTA05.qualcomm.com (8.18.1.2/8.18.1.2) with ESMTPS id 47EAKbQO012768 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 14 Aug 2024 10:20:37 GMT Received: from hu-skakitap-hyd.qualcomm.com (10.80.80.8) by nalasex01c.na.qualcomm.com (10.47.97.35) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.9; Wed, 14 Aug 2024 03:20:33 -0700 From: Satya Priya Kakitapalli To: Bjorn Andersson , Michael Turquette , Stephen Boyd CC: , , , Ajit Pandey , "Imran Shaik" , Taniya Das , Jagadeesh Kona , Satya Priya Kakitapalli , kernel test robot , Dan Carpenter , Vladimir Zapolskiy Subject: [PATCH V2] clk: qcom: clk-alpha-pll: Simplify the zonda_pll_adjust_l_val() Date: Wed, 14 Aug 2024 15:50:05 +0530 Message-ID: <20240814102005.33493-1-quic_skakitap@quicinc.com> X-Mailer: git-send-email 2.25.1 Precedence: bulk X-Mailing-List: linux-clk@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: nasanex01b.na.qualcomm.com (10.46.141.250) To nalasex01c.na.qualcomm.com (10.47.97.35) X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-GUID: q7uaszz1a1vs4v7urqS4Cx1RFmKTGskL X-Proofpoint-ORIG-GUID: q7uaszz1a1vs4v7urqS4Cx1RFmKTGskL X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1039,Hydra:6.0.680,FMLib:17.12.28.16 definitions=2024-08-14_07,2024-08-13_02,2024-05-17_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 bulkscore=0 suspectscore=0 impostorscore=0 phishscore=0 clxscore=1011 mlxlogscore=999 lowpriorityscore=0 priorityscore=1501 spamscore=0 adultscore=0 mlxscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2407110000 definitions=main-2408140072 In zonda_pll_adjust_l_val() replace the divide operator with comparison operator since comparisons are faster than divisions. Also, simplify the logic and remove the unnecessary 'quotient' local variable. Reported-by: kernel test robot Reported-by: Dan Carpenter Closes: https://lore.kernel.org/r/202408110724.8pqbpDiD-lkp@intel.com/ Signed-off-by: Satya Priya Kakitapalli Reviewed-by: Vladimir Zapolskiy --- Changes in V2: - Simplify the logic and remove unnecessary quotient variable. - Remove Fixes tag as this is just a simplification. drivers/clk/qcom/clk-alpha-pll.c | 9 +++------ 1 file changed, 3 insertions(+), 6 deletions(-) diff --git a/drivers/clk/qcom/clk-alpha-pll.c b/drivers/clk/qcom/clk-alpha-pll.c index 2f620ccb41cb..4ce3347beb39 100644 --- a/drivers/clk/qcom/clk-alpha-pll.c +++ b/drivers/clk/qcom/clk-alpha-pll.c @@ -2120,14 +2120,11 @@ static void clk_zonda_pll_disable(struct clk_hw *hw) static void zonda_pll_adjust_l_val(unsigned long rate, unsigned long prate, u32 *l) { - u64 remainder, quotient; + u64 remainder; - quotient = rate; - remainder = do_div(quotient, prate); - *l = quotient; + remainder = do_div(rate, prate); - if ((remainder * 2) / prate) - *l = *l + 1; + *l = rate + (u32)(remainder * 2 >= prate); } static int clk_zonda_pll_set_rate(struct clk_hw *hw, unsigned long rate,